Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Thread Tools Search this Thread Display Modes
Old 10-25-2012, 04:36 PM   #16
Box'a'bits OP
In need of repair
Box'a'bits's Avatar
Joined: Sep 2008
Location: Wellington, New Zealand
Oddometer: 2,393
Thanks all for your input. A good discussion. I am not intending to follow this example.

My question & curiousity arose because:
  1. I came across this picture again, &;
  2. I am thinking about a shortened torque arm as a means to raise the back end, to get some more ground clearance (following Redboots example).That won't happen yet though (a few other issues to address 1st)
Re the more extreme angles resulting from the potentially taller suspension, I am looking at the aftermarket driveshaft, & a higher maintenance schedule. The bearings / cruciform seem cheap enough to treat as consumables.

I had thought about a mono conversion, but the cost & hassle of that seem...
My '91 R100GS thread is here
My Ride photos are here

It's just better when there's twins involved....

Box'a'bits screwed with this post 10-25-2012 at 04:43 PM
Box'a'bits is offline   Reply With Quote
Old 10-26-2012, 12:17 PM   #17
A proud pragmatist.
H96669's Avatar
Joined: Nov 2009
Location: Hiding off Hwy 6, B.C.
Oddometer: 4,744
I had enough of them failed/failing BMW driveshafts.A few on my bench still....! Yes the angle of operation is critical on them lasting longer. That's from the specialist up here, good driveshaft at 125,000(?) Kms on his personal GS. Do not crank up the preload too much he told me.

Don't know how "consumable" them repleacable U-joints are. Sure not cheap for that later driveshaft I just had rebuilt ,but yes cheaper than a new driveshaft that's for sure.So now I also can treat the U-joints as consumables but still will be greasing them up every year.

And from someone from Wanaka that was just up here, helped me set my suspension for that....angle of operation vs sag, no more than 16 Degree operation on any U-joint will make them last a lot longer. BTW 16 degree is pretty close to where BMW sets them on the newer bikes, altough I still have to measure my K-bike properly, me and the Kiwi got pretty close to that by eye only. Sorry can't measure the GS, all in pieces/boxes but for the bad driveshaft kicking around the bench somewhere with the other ones.
Have tools, will travel!
H96669 is offline   Reply With Quote
Old 10-26-2012, 01:19 PM   #18
Beemerholics Anonymous
Wirespokes's Avatar
Joined: Jul 2002
Location: Jackson's Bottom Oregon
Oddometer: 8,280
I'd heard Oak's CV project didn't go well. I think there were a couple crashes or dramatic failures and the company designing them wasn't willing to invest more free energy into the project.

Something sure needs to be done about these things - and CV joints certainly seem like the better approach!

BTW, the first thing I saw in the OP's pic was the brake cable not attached and wondered what sort of solution that could be?
Wanted: Dead, smashed, crashed or trashed gauges
Wirespokes is offline   Reply With Quote
Old 10-26-2012, 06:25 PM   #19
Beastly Adventurer
Joined: Mar 2002
Location: N.E. Ohio
Oddometer: 1,071
bereahorn is offline   Reply With Quote
Old 10-26-2012, 06:26 PM   #20
Airhead Wrangler
Adios Mexico
Airhead Wrangler's Avatar
Joined: Mar 2008
Location: Back in Seattle, FINALLY
Oddometer: 6,607
I sent an email to Oak about it. We'll see what he says.
R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
Airhead Wrangler is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Times are GMT -7.   It's 04:35 AM.

Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2015